Title Airs On

S12:E1 The Conjugal Configuration

The Big Bang Theory
09/24/2018 08:00 pm EDT

Sheldon and Amy's honeymoon runs aground in New York, while Penny and Leonard discover they are uncomfortably similar to ...read more Sheldon and Amy's honeymoon runs aground in New York, while Penny and Leonard discover they are uncomfortably similar to Amy's parents, Mr. and Mrs. Fowler. Also, Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war. show less

S12:E2 The Wedding Gift Wormhole

The Big Bang Theory
09/27/2018 08:00 pm EDT

Sheldon and Amy drive themselves crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their ...read more Sheldon and Amy drive themselves crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding. Also, Koothrappali decides he wants to settle down and asks his father to arrange a marriage for him. show less

S12:E3 The Procreation Calculation

The Big Bang Theory
10/04/2018 08:00 pm EDT

The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk ...read more The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk about starting a family while Koothrappali explores an arranged marriage. show less

S12:E4 The Tam Turbulence

The Big Bang Theory
10/11/2018 08:00 pm EDT

When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his ...read more When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj's fiancée, Anu, for dinner to get the skinny on her. show less

S12:E5 The Planetarium Collision

The Big Bang Theory
10/18/2018 08:00 pm EDT

When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available to work ...read more When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available to work with him even it if means accidentally sabotaging her career in the process. Also, Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium. show less

S12:E6 The Imitation Perturbation

The Big Bang Theory
10/25/2018 08:00 pm EDT

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, ...read more When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, Leonard is shocked that Penny doesn't remember their first kiss. show less

S12:E7 The Grant Allocation Derivation

The Big Bang Theory
11/01/2018 08:00 pm EDT

Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Also, Bernadette ...read more Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Also, Bernadette turns the backyard playhouse into a hideaway from her husband and kids. show less

S12:E8 The Consummation Deviation

The Big Bang Theory
11/08/2018 08:00 pm EST

Sheldon tries to bond with Amy's father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice ...read more Sheldon tries to bond with Amy's father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs. Fowler. Also, Koothrappali and Anu try to get physical for the first time. show less

S12:E9 The Citation Negation

The Big Bang Theory
11/15/2018 08:00 pm EST

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and ...read more Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproven. Also, ultra-competitive Bernadette asks Stuart's girlfriend, Denise, to teach her how to beat Howard in a popular videogame. show less

S12:E10 The VCR Illumination

The Big Bang Theory
12/06/2018 08:00 pm EST

Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to ...read more Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to give up. Also, Bernadette turns into a pageant mom when she tries to help Wolowitz ace his Magic Castle audition. show less

S12:E11 The Paintball Scattering

The Big Bang Theory
01/03/2019 08:00 pm EST

Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Koothrappali catches ...read more Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Koothrappali catches Anu with her ex-boyfriend, and Stuart doesn't want to move in with Denise. show less

S12:E12 The Propagation Proposition

The Big Bang Theory
01/10/2019 08:00 pm EST

Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, ...read more Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Koothrappali attempts to mend things with his ex-fiancée, Anu. show less

S12:E13 The Confirmation Polarization

The Big Bang Theory
01/17/2019 08:00 pm EST

When Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, ...read more When Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, they're thrilled, until they try to kick Amy off the Nobel nomination. Also, Bernadette has a big success at work and Penny's going to be a part of it – whether she wants to or not. show less

S12:E14 The Meteorite Manifestation

The Big Bang Theory
01/31/2019 08:00 pm EST

Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the ...read more Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law. Also, Leonard is disappointed when his friends exclude him from a scientific project. show less

S12:E15 The Donation Oscillation

The Big Bang Theory
02/07/2019 08:00 pm EST

Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. ...read more Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip aboard the "vomit comet,". show less

S12:E16 Th e D & D Vortex

The Big Bang Theory
02/21/2019 08:00 pm EST

When the gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, ...read more When the gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith, deception and betrayal are the path to make it to the one open seat. show less

S12:E17 The Conference Valuation

The Big Bang Theory
03/07/2019 08:00 pm EST

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, ...read more When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it. show less